Consider using WebAssembly for RedisGears

[zboralski]

I understand that you chose JavaScript as the scripting language for RedisGears for a variety of reasons, including a smaller module footprint, better sandboxing possibilities, and the popularity of JavaScript among developers.

However, if sandboxing is the main concern, have you considered using WebAssembly (WASM) instead? WebAssembly is a portable binary instruction format that can run in the browser or on a server, and it's designed with performance and security in mind.

WASM can be compiled from other programming languages like C/C++, C#, Rust, Go, and many more, which means that developers would have a wide variety of options for writing RedisGears scripts. Additionally, using WASM could potentially reduce the module footprint even further than JavaScript, while providing even better sandboxing capabilities.

Of course, I understand that there may be other factors at play in the decision to use JavaScript, but I wanted to suggest WebAssembly as an alternative to consider.

Originally posted by @zboralski in #811 (comment)

[MeirShpilraien]

Thanks @zboralski .
Please notice that the V8 (the JS engine we are using) already supports wasm, we have a tutorial on how to use it with rust: https://github.com/RedisGears/RedisGears/blob/master/docs/create_development_environment.md#using-webassembly (notice that it is still experimental and might be change in the future).
We also considering adding wasm as a stand alone engine. RedisGears has a plugins mechanism so it will be easy to add more engines in the future. So it is definitely something we consider and investigating.